Which kit is better for a homeowner starting out?

The DCK551 covers the core jobs for $249 less. Step up to the DCK751P1 if you will sand or cut curves, since only it includes a sander and jigsaw.

Is the DCK751P1 worth the extra $249?

You get two more tools, a brushless drill and a 5.0 Ah battery instead of 2.0 and 4.0 Ah packs. Bought separately, a sander, jigsaw and 5.0 Ah battery cost more than the gap.

Which has the stronger drill?

The DCK751P1. Its DCD777 is brushless and rated 340 unit watts out; the DCK551's DCD771 is brushed at 300 unit watts out.

Do both kits use the same batteries?

Yes, both are DeWalt 20V MAX. Packs and chargers interchange, so you can add batteries to either kit later.

Which is better for cutting 2x4s?

Both circular saws cut a 2x4 at 45 degrees in one pass. The DCK751P1's 5.0 Ah battery holds up longer during repeated cuts.

Which kit has more batteries?

The DCK551 ships with two packs (2.0 Ah and 4.0 Ah). The DCK751P1 ships with one 5.0 Ah pack.

DeWalt DCK751P1 20V MAX 7-Tool Cordless Combo Kit vs DeWalt DCK551

Buy the DCK751P1 if you want the widest tool set: seven tools including a jigsaw, random orbit sander and brushless drill, plus a 5.0 Ah battery. Buy the DCK551 if you want to spend less and can live with five tools and smaller batteries. The DCK751P1 is $749.00 at The Home Depot as of November 4, 2026; the DCK551 is $500.00 at eBay as of the same date, a $249 gap.

Today the DeWalt DCK551 costs $249.00 less at its best price.

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